Detachment device of the engine oil filter of an automobile

Abstract

A detachment device of the engine oil filter of an automobile includes a base, two toggle plates, two clamping plates, and two link mechanisms. The clamping plates are connected by the link mechanisms which cannot be returned automatically, so that the user needs not to exert a large force to pull and push the two clamping plates, thereby facilitating the user's operation. In addition, each connecting portion has a width different from the diameter of the base, thereby forming a gap between the base and each connecting portion, so that the user can clearly watch the present position of the engine oil filter, thereby facilitating the user mounting and detaching the engine oil filter.

What is claimed is:  
     
         1 . A detachment device of the engine oil filter of an automobile, comprising: 
 a base having a periphery formed with two radially opposite connecting portions each having a width smaller than that of the base;    two toggle plates each having a first end pivotally mounted on a respective one of the two connecting portions of the base;    two clamping plates each pivotally mounted on a second end of a respective one of the two toggle plates; and    two link mechanisms each mounted between the two clamping plates, and each having a length that is changed with a relative distance between the two clamping plates.    
     
     
         2 . The detachment device of the engine oil filter of an automobile in accordance with  claim 1 , wherein the base has a circular shape.  
     
     
         3 . The detachment device of the engine oil filter of an automobile in accordance with  claim 1 , wherein the base has a center formed with a square hole.  
     
     
         4 . The detachment device of the engine oil filter of an automobile in accordance with  claim 1 , wherein each of the two clamping plates has a substantially U-shaped cross-section.  
     
     
         5 . The detachment device of the engine oil filter of an automobile in accordance with  claim 1 , wherein each of the two clamping plates has a bottom formed with a pivot portion pivotally mounted on the second end of the respective toggle plate.  
     
     
         6 . The detachment device of the engine oil filter of an automobile in accordance with  claim 1 , wherein each of the two link mechanisms includes a first link and a second link, the first link has a first end secured on a respective side of one of the two clamping plates, the second link has a first end and a second end, the first end of the second link is secured on a respective side of the other one of the two clamping plates.  
     
     
         7 . The detachment device of the engine oil filter of an automobile in accordance with  claim 6 , wherein the first end of the first link is secured on a respective side of one of the two clamping plates by a positioning member.  
     
     
         8 . The detachment device of the engine oil filter of an automobile in accordance with  claim 6 , wherein the first end of the second link is secured on a respective side of the other one of the two clamping plates by a positioning member.  
     
     
         9 . The detachment device of the engine oil filter of an automobile in accordance with  claim 6 , wherein the first link and the second link are displaced relative to each other in a translation manner.  
     
     
         10 . The detachment device of the engine oil filter of an automobile in accordance with  claim 6 , wherein the second link of each of the two link mechanisms is formed with an elongate guide slot extended from the first end to the second end thereof.  
     
     
         11 . The detachment device of the engine oil filter of an automobile in accordance with  claim 10 , wherein the first end of the first link is secured on a respective side of one of the two clamping plates by a positioning member which is slidably mounted in the guide slot.  
     
     
         12 . The detachment device of the engine oil filter of an automobile in accordance with  claim 10 , wherein each of the two link mechanisms further includes a locking knob rested on the second link, the locking knob has a reduced neck portion extended through the guide slot and secured on a second end of the first link.